blob: f4b80793167e86f04dfa2ad21c6709c44fe6dfd2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*-------------------------------------------------------------------------
*
* internal.h--
* Definitions required throughout the query optimizer.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: internal.h,v 1.10 1997/09/12 21:25:02 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef INTERNAL_H
#define INTERNAL_H
/*
* ---------- SHARED MACROS
*
* Macros common to modules for creating, accessing, and modifying
* query tree and query plan components.
* Shared with the executor.
*
*/
/*
* System-dependent tuning constants
*
*/
#define _CPU_PAGE_WEIGHT_ 0.033/* CPU-heap-to-page cost weighting factor */
#define _CPU_INDEX_PAGE_WEIGHT_ 0.017 /* CPU-index-to-page cost
* weighting factor */
#define _MAX_KEYS_ INDEX_MAX_KEYS /* maximum number of keys in an
* index */
#define _TID_SIZE_ 6 /* sizeof(itemid) (from ../h/itemid.h) */
/*
* Size estimates
*
*/
/* The cost of sequentially scanning a materialized temporary relation
*/
#define _TEMP_SCAN_COST_ 10
/* The number of pages and tuples in a materialized relation
*/
#define _TEMP_RELATION_PAGES_ 1
#define _TEMP_RELATION_TUPLES_ 10
/* The length of a variable-length field in bytes
*/
#define _DEFAULT_ATTRIBUTE_WIDTH_ (2 * _TID_SIZE_)
/*
* Flags and identifiers
*
*/
/* Identifier for (sort) temp relations */
/* used to be -1 */
#define _TEMP_RELATION_ID_ InvalidOid
/* Identifier for invalid relation OIDs and attribute numbers for use by
* selectivity functions
*/
#define _SELEC_VALUE_UNKNOWN_ -1
/* Flag indicating that a clause constant is really a parameter (or other
* non-constant?), a non-parameter, or a constant on the right side
* of the clause.
*/
#define _SELEC_NOT_CONSTANT_ 0
#define _SELEC_IS_CONSTANT_ 1
#define _SELEC_CONSTANT_LEFT_ 0
#define _SELEC_CONSTANT_RIGHT_ 2
#define TOLERANCE 0.000001
#define FLOAT_EQUAL(X,Y) ((X) - (Y) < TOLERANCE)
#define FLOAT_IS_ZERO(X) (FLOAT_EQUAL(X,0.0))
extern int BushyPlanFlag;
/* #define deactivate_joininfo(joininfo) joininfo->inactive=true*/
/*#define joininfo_inactive(joininfo) joininfo->inactive */
/* GEQO switch according to number of relations in a query */
#define GEQO_RELS 8
#endif /* INTERNAL_H */
|
